US5290580A - Cooling process for perishable food and horticultural products - Google Patents
Cooling process for perishable food and horticultural products Download PDFInfo
- Publication number
- US5290580A US5290580A US07/843,471 US84347192A US5290580A US 5290580 A US5290580 A US 5290580A US 84347192 A US84347192 A US 84347192A US 5290580 A US5290580 A US 5290580A
- Authority
- US
- United States
- Prior art keywords
- product
- cooling element
- cooling
- liquid
- vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/015—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation
- A23L3/0155—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation using sub- or super-atmospheric pressures, or pressure variations transmitted by a liquid or gas
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/363—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in form of powder, granules, or flakes
- A23L3/364—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in form of powder, granules, or flakes with packages or with shaping in form of blocks or portions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/02—Packaging agricultural or horticultural products
- B65B25/04—Packaging fruit or vegetables
- B65B25/041—Packaging fruit or vegetables combined with their conservation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
- B65D81/2084—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in a flexible container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D85/34—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for fruit, e.g. apples, oranges or tomatoes
Definitions
- the present invention relates to a process for cooling perishable products and, in particular, to a process which does not require moisture resistant product containers.
- the warm product is loaded into an air-tight chamber or tube which is subsequently evacuated by a mechanical or steam-ejector vacuum pump to establish a partial vacuum therein.
- a mechanical or steam-ejector vacuum pump to establish a partial vacuum therein.
- the total gas pressure in the tube is reduced below the saturation pressure of water at the temperature of the warm product (the "flash point"), water on and within the product begins to evaporate rapidly.
- the thermal energy required to provide the heat of vaporization of this water comes predominately from the sensible heat (e.g. "field heat") of the product.
- the product temperature begins to fall as rapid evaporation begins.
- vacuum pumps are generally very inefficient movers of condensable gases, such as water vapor
- chilled coils are provided within the tube or chamber to condense and thereby remove the liberated water vapor. These coils are chilled usually by evaporation of liquid ammonia within, the ammonia being supplied by a conventional vapor-compression refrigeration unit.
- a method for cooling perishable food and horticultural products includes placing a cooling element with a liquid holding portion with the product and subjecting both the product and the cooling element to a vacuum.
- the liquid holding portion is of the type which readily releases liquid to evaporation. Under these conditions, evaporation of liquid, preferably water, from the liquid holding portion of the cooling element enhances the cooling of the products.
- the cooling element comprises a sheet of liquid holding fibrous material, most preferably a wet-laid or air-laid sheet of wood pulp.
- the sheet may be used, for example, as a liner for a box or tray and/or between layers of produce in a box or other container. When exposed to a vacuum, liquid evaporates from the sheet to cool the sheet, which in turn cools the product.
- the liquid holding portion of the cooling element may comprise a hydrophilic material, such as a wood pulp sheet.
- a superabsorbent material such as a hydrogel may be incorporated into the cooling element.
- the produce may be cooled while in a non-packaged state or after packaging the produce in containers.
- the produce containers may be sealed or unsealed.
- the containers may also be of a film or films or other material which controls the flow of oxygen and carbon dioxide between the interior and exterior thereof and may also have a water permeable portion so as to permit water vapor to pass from the interior to the exterior of the container.
- the sheet may be used in conjunction with a box of corrugated board which is not waxed or otherwise surface treated to resist moisture.
- a sheet of wood pulp as a cooling element and a non-waxed box, both the sheet and box may readily be repulped, thereby enhancing the recyclability of the packaging material.
- water in the liquid cooling element in an amount which is preferably no more than about four percent by weight to the weight of the product. Although more water could be included, excess water remaining after vacuum cooling can interfere with product quality if not removed or separated from the product. Most preferably, the water is present in the cooling element in an amount of from about two percent to about four percent by weight to the weight of the product. When cooled in a vacuum, about one percent of the weight of the product would be evaporated (water from the product) for each 10° F. of cooling. By replacing much of this evaporated liquid with liquid evaporated from the cooling element, vacuum cooling of the product is accomplished while reducing the loss in product weight due to evaporation of water from the product.
- the cooling element may include plural passageways open at at least one end through which gas may pass to enhance the rate of evaporation of liquid from the cooling element.
- the cooling element may be formed of a corrugated board having a fluted core and a fibrous mat on one surface thereof for purposes of absorbing liquid.
- the cooling element comprises a fluted or corrugated core with a layer of a hydrophilic material at one side of the core.
- the hydrophilic material which may comprise wood pulp or other suitable material, contains water for cooling by evaporation.
- the corrugations or flutes of the core provide paths for the flow of air and water vapor adjacent to the hydrophilic material to aid in the evaporation of moisture from the hydrophilic material, and thus the cooling of the product.
- FIG. 1 illustrates one form of a liquid containing cooling element which is shown in position to receive and surround a perforated product container, in this case a container of cauliflower florets, which is then placed in a non-waxed corrugated box.
- a perforated product container in this case a container of cauliflower florets, which is then placed in a non-waxed corrugated box.
- FIG. 2 illustrates a section of the specific cooling element of FIG. 1.
- FIG. 3 illustrates an alternative form of cooling element.
- FIG. 4 illustrates a cooling element in the form of a fibrous sheet for positioning in a box or, in this case, a tray.
- FIG. 5 illustrates a corrugated box with sheeted cooling elements dispersed, as by interleaving or layering between produce in the box.
- the method of cooling of the present invention is applicable to a wide variety of perishable food and horticultural products which are suitable for vacuum cooling. These products include, but are not limited to, respiring products, such as leafy vegetables (e.g. lettuce, both whole head and cut), cauliflower and celery.
- respiring products such as leafy vegetables (e.g. lettuce, both whole head and cut), cauliflower and celery.
- the method of cooling involves the evaporation of a liquid from a cooling element in proximity to the product as the product is subjected to vacuum cooling.
- FIG. 1 illustrates one form of a separate cooling element which is capable of holding a volatile liquid, such as water, ethanol or the like, in proximity to the product or product container during vacuum cooling.
- a volatile liquid such as water, ethanol or the like
- FIG. 1 illustrates one form of a separate cooling element which is capable of holding a volatile liquid, such as water, ethanol or the like, in proximity to the product or product container during vacuum cooling.
- a hydrophilic material such as of a cellulose based material (e.g. nylon, cellulose acetate, cellophane or other dissolved cellulose based films) or other absorbent material
- the container itself may function as a cooling element with liquid evaporating from the container to facilitate the cooling of its contents.
- Polysaccharide films, hydrogels (such as the so-called superabsorbent particles common in the disposable diaper art) adhered to film, fibrous materials such as wood pulp adhered to the film, are yet other examples of mechanisms for placing liquid in proximity to, and preferably in contact with or adjacent to the product during vacuum cooling.
- the required capacity of the moisture source depends upon the mass of the product within the package. With water being the cooling liquid, a rule of thumb indicates that one percent of the product mass is lost to evaporation for every 10° F. of vacuum cooling. To minimize evaporation of moisture from the product itself during vacuum cooling, the moisture source is typically designed to provide at least this minimum mass. However, excessive moisture remaining in contact with produce can result in harm to the quality of the cooled product. Therefore, to minimize the problem of excessive liquid, preferably the maximum weight of liquid (e.g. water) incorporated into the cooling element is six percent of the weight of the product. Most preferably, the weight of water in the cooling element is from two percent to six percent of the weight of the product. This water is readily evaporated from the cooling element during vacuum cooling.
- the maximum weight of liquid e.g. water
- the moisture is most conveniently placed in a substrate with the substrate being positioned in proximity of the produce or in the container wall of the packaged produce.
- moisture absorbing material may be utilized, such as blotter pads, absorbent fluff pulp, superabsorbent polymers, paper, molded fiber and combinations thereof.
- the location of the moisture containing substrate with respect to the produce or produce container may be varied, such as underneath, along side, interleaved, or on top thereof.
- the surface area of the water retaining portion of the cooling element is sized so that the cooling element need not be saturated with liquid in any area thereof.
- the water containing cooling element has a surface area at one major surface (one side) thereof of from about five to about fifty square inches per pound of product and contains from about 0.001 to about 0.004 pounds of water per square inch of surface area.
- Cooling elements in the form of sheets maximize the available surface area of the cooling element.
- a specifically preferred sheet or mat is of wet-laid or air-laid NB 316 wood pulp, from Weyerhaeuser Company, at a basis weight of from about 50 to about 150 pounds per 1,000 square feet. Most preferably, such a sheet is wet-laid and has a basis weight of 90 pounds per 1,000 square ft. and a mat density of 36 pounds per cubic foot.
- the substrate material is indicated at 50 and is positioned at the interior of the collar 14.
- the water containing substrate 50 comprises a sheet which is positioned at a surface of the collar 14 and which is incorporated into the collar.
- the sheet may be of any suitable liquid containing material, such as wood pulp.
- the collar 14 may include a conventional corrugated core, indicated at 52, such as of corrugated Kraft paper and a back 58 of conventional liner board or Kraft paper.
- the corrugations define passageways or flutes, some being indicated at 54 in FIG. 2, which permit the passage of air or otherwise expose the back side of the sheet 50.
- the receptacle 16 may be a separate element as indicated at FIG. 1, and may be a simple box of corrugated board (see box 100 in FIG. 5).
- the box need not be waxed or otherwise rendered hydrophobic because the water containing liners or cooling elements do not transfer significant amounts of liquid to the box or receptacle. Consequently, the box or receptacle may readily be repulped to facilitate recycling. This compares to the extreme difficulty or commercial impracticality of repulping waxed boxes.
- the receptacle and cooling element may be combined, such as in the structure like that shown in FIG. 2. In such a case, the interior surface of the receptacle would comprise the water holding or carrying cooling element, such as the sheet 50.
- the cooling element may simply be an absorbent layer 40, such as of wood pulp, adhered to a substrate 30 forming the container 10.
- the cooling element may comprise a fibrous sheet 80, such as of air-laid wood pulp, which is wetted with water (before or after placement) and placed in a tray 82 of any suitable material, such as plastic or densified wood pulp.
- the tray simply serves to support the cooling element sheet 80 and product placed on or in proximity to the sheet during vacuum cooling and potentially thereafter during transportation and display of the product for resale.
- the product such as lettuce heads 102 or celery stalks, or other product to be cooled, may be placed in a corrugated box 100.
- the box is preferably not waxed.
- the wet cooling elements such as sheets 80, are in position between the layers of product.
- a lid 104 may be used to close the box.
- the box is typically perforated to allow the rapid transfer of air and water vapor from the box during vacuum cooling.
- the gas environment may be achieved by charging the vacuum chamber with a desired gas atmosphere having a gas balance which differs from air.
- the modified atmosphere within the container remains at the charged gas composition for a substantial period of time.
- the atmosphere may be enriched in carbon dioxide.
- This charging gas will pass into the container and effectively precharge the chamber with gas of the desired environment.
- the charging gases may include a fumigant for destroying fungi, bacteria, insects and other pests that might otherwise damage the packaged product.
- a number of known fumigants can be used, such as methyl bromide gas for mite control to satisfy export requirements.
- gases such as carbon monoxide may be used to inhibit enzymes responsible for browning of lettuce and other products.
- fumigants may be utilized, with other examples including sulfur dioxide and sulfite based materials.
- Other chemicals for these purposes may be added in liquid or solid form.
- the products are preferably either not surrounded by a container 10 or a container 10 is used which is perforated to permit rapid air flow through the container.
- the product and accompanying water containing cooling element is placed in a conventional vacuum tube and subjected to a vacuum to evaporate water from the cooling element, and to a lesser extent from the product, to accelerate cooling of the product.
- Refrigeration coils are used to condense the evaporating liquid to accelerate the rate of evaporation and resulting cooling.
- the liquid is free to more rapidly evaporate from the cooling element than the product upon the application of the vacuum. Consequently, the cooling element cools more rapidly than the product and accelerates the cooling of the product. This accelerated cooling is enhanced by positioning the cooling element in contact with the product because heat from the product is then transferred by conduction directly to the cooling element. Convection cooling also takes place and would predominate if the cooling element is spaced from the product.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Food Science & Technology (AREA)
- Nutrition Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Agronomy & Crop Science (AREA)
- Packages (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Vacuum Packaging (AREA)
Abstract
Description
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/843,471 US5290580A (en) | 1990-09-05 | 1992-02-27 | Cooling process for perishable food and horticultural products |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/577,990 US5458899A (en) | 1990-09-05 | 1990-09-05 | Method of packaging perishable food or horticultural products |
US07/843,471 US5290580A (en) | 1990-09-05 | 1992-02-27 | Cooling process for perishable food and horticultural products |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/577,990 Continuation-In-Part US5458899A (en) | 1990-09-05 | 1990-09-05 | Method of packaging perishable food or horticultural products |
Publications (1)
Publication Number | Publication Date |
---|---|
US5290580A true US5290580A (en) | 1994-03-01 |
Family
ID=24311003
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/577,990 Expired - Lifetime US5458899A (en) | 1990-09-05 | 1990-09-05 | Method of packaging perishable food or horticultural products |
US07/843,471 Expired - Lifetime US5290580A (en) | 1990-09-05 | 1992-02-27 | Cooling process for perishable food and horticultural products |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/577,990 Expired - Lifetime US5458899A (en) | 1990-09-05 | 1990-09-05 | Method of packaging perishable food or horticultural products |
Country Status (3)
Country | Link |
---|---|
US (2) | US5458899A (en) |
CA (1) | CA2072967C (en) |
WO (1) | WO1992004235A1 (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5421138A (en) * | 1993-05-07 | 1995-06-06 | Weyerhaeuser Company | Field packing and cooling process for fresh produce |
US5619841A (en) * | 1993-05-07 | 1997-04-15 | Weyerhaeuser Company | Field packing and cooling process for fresh produce |
US6113958A (en) * | 1998-10-29 | 2000-09-05 | The Regents Of The University Of California | Method of preventing wound-induced browning in produce |
US6189299B1 (en) | 1998-03-10 | 2001-02-20 | Fresh Express, Inc | Apparatus for cooling and packaging bulk fresh products |
US6196237B1 (en) | 1998-09-01 | 2001-03-06 | Fresh Express Corp. | Methods for washing cores of cored lettuce heads |
US6379731B1 (en) | 2000-02-18 | 2002-04-30 | Fresh Express, Inc. | Methods for vacuum gas flush treatment of fresh produce |
US6435347B1 (en) | 2000-02-18 | 2002-08-20 | Fresh Express, Incorporated | Container for freshly harvested respiring, leafy produce |
US6467248B2 (en) | 2000-02-18 | 2002-10-22 | Fresh Express, Inc. | Method for processing freshly harvested leafy vegetables and subdivided, peeled fruit |
US20020164407A1 (en) * | 1995-07-11 | 2002-11-07 | Wolfe Steven K. | Method for cleaning, packing and transporting vegetables |
US6514349B1 (en) | 1999-09-14 | 2003-02-04 | Charles R. Meldrum | Produce washing system utilizing multiple energy sources |
US6537600B1 (en) | 1999-09-14 | 2003-03-25 | Charles R. Meldrum | Multiple-stage energy-efficient produce processing system |
US6679276B1 (en) | 1999-04-20 | 2004-01-20 | Fresh Express, Inc. | Apparatus and methods for washing the cored areas of lettuce heads during harvest |
US20040058605A1 (en) * | 2002-09-19 | 2004-03-25 | Hansen Michael R. | Polysaccharide treated cellulose fibers |
US20050037118A1 (en) * | 2003-08-13 | 2005-02-17 | Unilever Bestfoods North America, Division Of Conopco, Inc. | Blanching vegetables |
US20050233039A1 (en) * | 1995-07-11 | 2005-10-20 | Wolfe Steven K | Method for cleaning, packing, and transporting vegetables |
EP1690806A1 (en) * | 2005-02-11 | 2006-08-16 | Keepfreeze S.A. | Cooling packaging |
WO2007037707A2 (en) * | 2005-09-29 | 2007-04-05 | David Conrad Clarke | Cooling device |
US20070214763A1 (en) * | 2006-03-14 | 2007-09-20 | Dole Fresh Vegetables, Inc. | Lettuce harvesting for cup-shaped portions of heads |
US7278433B1 (en) | 2003-02-20 | 2007-10-09 | Dole Fresh Vegetables, Inc. | Washing a cored lettuce head |
US20110203222A1 (en) * | 2008-11-06 | 2011-08-25 | 4F4 Fresh Ab | Apparatus for Domestic Use to Preserve Food, by Changing the Atmosphere in a Food Package |
US10240846B2 (en) | 2016-07-27 | 2019-03-26 | Walmart Apollo, Llc | Systems and methods for delivering perishable items |
US10474982B2 (en) | 2016-10-04 | 2019-11-12 | Walmart Apollo, Llc | Systems and methods utilizing nanotechnology insulation materials in limiting temperature changes during product delivery |
US10488095B2 (en) | 2016-05-18 | 2019-11-26 | Walmart Apollo, Llc | Evaporative cooling systems and methods of controlling product temperatures during delivery |
US11511902B2 (en) * | 2020-02-03 | 2022-11-29 | Multivac Sepp Haggenmueller Se & Co. Kg | Deep-drawing packaging machine with vacuum cooling station and method for vacuum cooling hot-packaged products |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2127913T3 (en) * | 1992-11-24 | 1999-05-01 | Fresh Western Marketing Inc | CONTROLLED ATMOSPHERE CONTAINER FOR AGRICULTURAL PRODUCTS THAT RESPIRATE AND METHOD FOR DELAYING THE RIPENING OF AGRICULTURAL PRODUCTS THAT RESPIRATE AND PACKAGING. |
WO1996020870A1 (en) * | 1994-12-29 | 1996-07-11 | E.I. Du Pont De Nemours And Company | Packaging film for respiring materials |
US5704193A (en) * | 1995-10-12 | 1998-01-06 | Roe; Quentin J. | Container for shipping and displaying articles, and method for making |
US5971906A (en) * | 1996-11-29 | 1999-10-26 | Tharpe, Jr.; Johnny M. | Tray forming apparatus and method |
US5711211A (en) * | 1997-01-31 | 1998-01-27 | Embalajes Proem Limitada | Chlorine generator for preservation of fruits and vegetables |
US5945147A (en) * | 1997-10-23 | 1999-08-31 | Cold-Bag, Inc. | Method for packaging fresh perishable foods |
US5919504A (en) * | 1998-04-13 | 1999-07-06 | Weyerhaeuser Company | Fresh produce package |
US6045838A (en) * | 1998-08-10 | 2000-04-04 | Davis; Harold L. | Grape handling and storage bag |
US8783002B2 (en) | 1998-09-10 | 2014-07-22 | The Bowden Group | Method for providing a regulated atmosphere for packaging perishable goods |
US7644560B2 (en) * | 1998-09-10 | 2010-01-12 | The Bowden Group | System and method for providing a regulated atmosphere for packaging perishable goods |
US8256190B2 (en) * | 1998-09-10 | 2012-09-04 | The Bowden Group | System and method for providing a regulated atmosphere for packaging perishable goods |
US6305148B1 (en) | 1998-09-10 | 2001-10-23 | The Bowden Group | System and method providing a regulated atmosphere for packaging perishable goods |
US6491993B1 (en) | 1999-08-12 | 2002-12-10 | Pactiv Corporation | Absorbent pouches |
US6391357B1 (en) | 2000-05-22 | 2002-05-21 | Weyerhauser Company | Method of treating fresh produce |
US8110232B2 (en) | 2000-09-26 | 2012-02-07 | Apio, Inc. | Packaging of bananas |
US7601374B2 (en) | 2000-09-26 | 2009-10-13 | Landec Corporation | Packaging of respiring biological materials |
US6740346B2 (en) * | 2001-01-19 | 2004-05-25 | Stepac L.A., Ltd. | System for packaging, storing and transporting agricultural produce |
US7004378B1 (en) * | 2002-12-04 | 2006-02-28 | R & L Engineering, Inc. | Small-article container |
US20040124108A1 (en) * | 2002-12-27 | 2004-07-01 | Igor Touzov | Passive method of high vapor pressure stabilization |
US20040151812A1 (en) * | 2003-01-28 | 2004-08-05 | Chiquita Brands, Inc. | Method of preserving fresh perishables |
EP1629237A4 (en) | 2003-05-29 | 2011-11-09 | Stepac L A Ltd | Pre and post-harvest qc data acquisition system for agricultural products |
WO2005012132A1 (en) * | 2003-07-25 | 2005-02-10 | Shell Pac, Llc | Case-ready food packaging system |
US20050266129A1 (en) * | 2004-05-27 | 2005-12-01 | Nazir Mir | Packaging material and method for perishable food product |
AU2005250421A1 (en) | 2004-05-27 | 2005-12-15 | Perftech Inc. | Packaging material and method for microwave and steam cooking of perishable food product |
US20080166694A1 (en) * | 2007-01-09 | 2008-07-10 | Michael Weber | Plant tissue packaging process |
US20080196304A1 (en) * | 2007-02-15 | 2008-08-21 | Bethel Farms Ltd. | Protective cover for vegetative material and associated methods |
US20090133325A1 (en) * | 2007-11-23 | 2009-05-28 | Workman Packaging Inc., | Cover for deflecting light and minimizing heat absorption by a body |
US20110029413A1 (en) * | 2008-01-31 | 2011-02-03 | Israel Ben-Tzur | Perishable lifetime management system and method |
EP2318298A1 (en) * | 2008-07-31 | 2011-05-11 | Picker Technologies LLC | System for transporting grossly asymmetrical objects such as a cluster of grapes or other fruit through a pneumatic tube |
WO2012166984A1 (en) | 2011-06-01 | 2012-12-06 | Pfi Acquisition, Inc. | Apparatus for powering an accessory device in a refrigerated container |
DE102011107723B4 (en) * | 2011-07-14 | 2013-05-23 | eCola GmbH | Trays, transport packaging and transport containers |
US9185920B2 (en) | 2012-01-23 | 2015-11-17 | Apio, Inc. | Atmosphere control around respiring biological materials |
US9850512B2 (en) | 2013-03-15 | 2017-12-26 | The Research Foundation For The State University Of New York | Hydrolysis of cellulosic fines in primary clarified sludge of paper mills and the addition of a surfactant to increase the yield |
FR3015438B1 (en) * | 2013-12-20 | 2017-03-24 | Biomerieux Sa | USE OF POLYMER FILM FOR THE PACKAGING OF A CULTURE MEDIUM |
US9951363B2 (en) | 2014-03-14 | 2018-04-24 | The Research Foundation for the State University of New York College of Environmental Science and Forestry | Enzymatic hydrolysis of old corrugated cardboard (OCC) fines from recycled linerboard mill waste rejects |
CN110667908B (en) * | 2019-10-21 | 2022-08-02 | 北部湾大学 | Tissue culture seedling packaging method suitable for long-distance transportation |
JP2023518806A (en) * | 2020-03-26 | 2023-05-08 | シーエスピー テクノロジーズ,インコーポレイティド | Active compound attachment for preserving product in package and method of making and using same |
Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB189902031A (en) * | 1899-01-28 | 1899-12-16 | Celeste Joly | Improved System for the Storage of Cold, the Preservation and Transportaion of Frozen Goods. |
US880414A (en) * | 1906-03-22 | 1908-02-25 | L H Roy | Process for temperature regulation. |
AU2115629A (en) * | 1929-07-10 | 1930-01-14 | Dryke Equipment Corporation | Refrigerated packages |
US1828179A (en) * | 1929-10-08 | 1931-10-20 | Samuel J Gallagher | Refrigerated produce package |
US1853719A (en) * | 1926-01-04 | 1932-04-12 | Frederick G Bradbury | Method of and means for transporting perishable produce |
US2164025A (en) * | 1937-07-15 | 1939-06-27 | Keyes Fibre Co | Packing |
USRE21144E (en) * | 1939-07-11 | Refrigerating lettuce and the like | ||
US2467268A (en) * | 1943-12-08 | 1949-04-12 | Sherman Paper Products Corp | Shipping package using dry ice |
US2496731A (en) * | 1946-06-08 | 1950-02-07 | Longo & Sons Inc M | Fresh produce package cooled by ice |
US2684907A (en) * | 1951-06-05 | 1954-07-27 | Rex L Brunsing | Method of shipping lettuce and of preparing lettuce and the like for shipment |
US2774230A (en) * | 1952-04-17 | 1956-12-18 | Kasser Morris | Cooling method and device |
US3309206A (en) * | 1965-06-17 | 1967-03-14 | Paul J Daniels | Dispensing cartons for stacked food items |
GB1264484A (en) * | 1968-04-18 | 1972-02-23 | ||
US3795749A (en) * | 1972-03-31 | 1974-03-05 | Borden Inc | Packaging lettuce in carbon dioxide permeable film |
US3890762A (en) * | 1973-08-20 | 1975-06-24 | Day Star Corp | Produce shipping container and packing method |
US4001443A (en) * | 1976-02-10 | 1977-01-04 | Pennwalt Corporation | Package and method for packaging and storing cut leafy vegetables |
US4294079A (en) * | 1980-03-12 | 1981-10-13 | Better Agricultural Goals Corporation | Insulated container and process for shipping perishables |
EP0261930A2 (en) * | 1986-09-23 | 1988-03-30 | Keyes (U.K.) Limited | Improvements in or relating to packaging |
EP0337860A2 (en) * | 1988-04-08 | 1989-10-18 | Carboxyque Francaise | Isothermal container with refrigerant tank and application to fresh product transport |
FR2631610A1 (en) * | 1988-05-17 | 1989-11-24 | Pascual France Sa | Isothermal package for the transport of perishable foodstuffs and having detachable panels filled with a refrigerant agent |
US4910032A (en) * | 1988-11-16 | 1990-03-20 | Hercules Incorporated | Water-permeable controlled atmosphere packaging device from cellophane and microporous film |
US4943440A (en) * | 1986-10-22 | 1990-07-24 | General Mills, Inc. | Controlled atmosphere cut vegetable produce package and method |
US5079934A (en) * | 1988-03-22 | 1992-01-14 | Lev Vinokurov | Evaporative cooler |
US5088293A (en) * | 1990-08-30 | 1992-02-18 | The Japan Steel Works, Ltd. | Vacuum cooling method and apparatus |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1821106A (en) * | 1925-01-12 | 1931-09-01 | Milani Edward | Method of preserving food products |
US2786342A (en) * | 1954-03-25 | 1957-03-26 | Charles E Goetz | Vacuum cooling |
US2870954A (en) * | 1956-05-15 | 1959-01-27 | Reynolds Metals Co | Vacuum package |
US3111412A (en) * | 1960-04-06 | 1963-11-19 | Bancroft Paper Co Inc | Method for packaging perishable comestibles and product |
US3450542A (en) * | 1965-02-23 | 1969-06-17 | United Fruit Co | Controlled atmosphere storage of green bananas |
US3453119A (en) * | 1965-03-29 | 1969-07-01 | Whirlpool Co | Storage of fresh leafy vegetables |
US3399819A (en) * | 1966-01-14 | 1968-09-03 | George S. Rennie | Containers for moist products |
US3521806A (en) * | 1967-06-14 | 1970-07-28 | Joseph J Esty | Carton |
FR1567996A (en) * | 1967-12-29 | 1969-05-23 | ||
US4061785A (en) * | 1969-04-26 | 1977-12-06 | Tetsuya Nishino | Method and device for preserving vegetables |
US3761289A (en) * | 1970-10-23 | 1973-09-25 | Inter Harvest Inc | Produce package |
US3706410A (en) * | 1970-11-16 | 1972-12-19 | Fibreboard Corp | Air permeable container |
US3804961A (en) * | 1972-03-31 | 1974-04-16 | Borden Inc | Packaging tomatoes in carbon dioxide permeable film |
US3958028A (en) * | 1972-04-20 | 1976-05-18 | Grumman Allied Industries, Inc. | Low temperature hypobaric storage of metabolically active matter |
US3940062A (en) * | 1973-09-06 | 1976-02-24 | Rainey Don E | Moisture pod for the preservation of perishable comestibles |
US4256770A (en) * | 1976-06-23 | 1981-03-17 | Rainey Don E | Preservation of perishable comestibles |
US4163070A (en) * | 1977-05-04 | 1979-07-31 | B. E. Williams | Shrouding skinned meat carcasses |
GB1605158A (en) * | 1978-05-12 | 1982-07-14 | Tweedy Of Burnley Ltd | Vacuum cooling |
IT1136163B (en) * | 1980-03-26 | 1986-08-27 | Kontek Tecnologie Della Conser | AUTONOMOUS GENERATOR OF GAS OR GASEOUS MIXTURES PARTICULARLY SUITABLE FOR THE CONSERVATION TREATMENT OF FOOD PRODUCTS |
US4452174A (en) * | 1982-09-30 | 1984-06-05 | Fedder Richard C | Toner concentration sensor assembly for electro-photographic apparatus |
US4515266A (en) * | 1984-03-15 | 1985-05-07 | St. Regis Corporation | Modified atmosphere package and process |
IL84100A (en) * | 1986-10-06 | 1990-11-29 | Hercules Inc | Container for controlled atmospheric storage of fresh fruits and vegetables |
FR2610289B1 (en) * | 1987-02-04 | 1989-06-09 | Air Liquide | PROCESS FOR THE PRESERVATION OF PERISHABLE AND PACKAGED RAW PLANT FOODS |
US4734324A (en) * | 1987-03-27 | 1988-03-29 | Hercules Incorporated | Heat sealable microporous polypropylene films |
US4903493A (en) * | 1989-01-17 | 1990-02-27 | Pymah Corporation | Heat sink protective packaging for thermolabile goods |
-
1990
- 1990-09-05 US US07/577,990 patent/US5458899A/en not_active Expired - Lifetime
-
1991
- 1991-09-05 WO PCT/US1991/006340 patent/WO1992004235A1/en active Application Filing
- 1991-09-05 CA CA002072967A patent/CA2072967C/en not_active Expired - Lifetime
-
1992
- 1992-02-27 US US07/843,471 patent/US5290580A/en not_active Expired - Lifetime
Patent Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE21144E (en) * | 1939-07-11 | Refrigerating lettuce and the like | ||
GB189902031A (en) * | 1899-01-28 | 1899-12-16 | Celeste Joly | Improved System for the Storage of Cold, the Preservation and Transportaion of Frozen Goods. |
US880414A (en) * | 1906-03-22 | 1908-02-25 | L H Roy | Process for temperature regulation. |
US1853719A (en) * | 1926-01-04 | 1932-04-12 | Frederick G Bradbury | Method of and means for transporting perishable produce |
AU2115629A (en) * | 1929-07-10 | 1930-01-14 | Dryke Equipment Corporation | Refrigerated packages |
US1828179A (en) * | 1929-10-08 | 1931-10-20 | Samuel J Gallagher | Refrigerated produce package |
US2164025A (en) * | 1937-07-15 | 1939-06-27 | Keyes Fibre Co | Packing |
US2467268A (en) * | 1943-12-08 | 1949-04-12 | Sherman Paper Products Corp | Shipping package using dry ice |
US2496731A (en) * | 1946-06-08 | 1950-02-07 | Longo & Sons Inc M | Fresh produce package cooled by ice |
US2684907A (en) * | 1951-06-05 | 1954-07-27 | Rex L Brunsing | Method of shipping lettuce and of preparing lettuce and the like for shipment |
US2774230A (en) * | 1952-04-17 | 1956-12-18 | Kasser Morris | Cooling method and device |
US3309206A (en) * | 1965-06-17 | 1967-03-14 | Paul J Daniels | Dispensing cartons for stacked food items |
GB1264484A (en) * | 1968-04-18 | 1972-02-23 | ||
US3795749A (en) * | 1972-03-31 | 1974-03-05 | Borden Inc | Packaging lettuce in carbon dioxide permeable film |
US3890762A (en) * | 1973-08-20 | 1975-06-24 | Day Star Corp | Produce shipping container and packing method |
US4001443A (en) * | 1976-02-10 | 1977-01-04 | Pennwalt Corporation | Package and method for packaging and storing cut leafy vegetables |
US4294079A (en) * | 1980-03-12 | 1981-10-13 | Better Agricultural Goals Corporation | Insulated container and process for shipping perishables |
EP0261930A2 (en) * | 1986-09-23 | 1988-03-30 | Keyes (U.K.) Limited | Improvements in or relating to packaging |
US4943440A (en) * | 1986-10-22 | 1990-07-24 | General Mills, Inc. | Controlled atmosphere cut vegetable produce package and method |
US5079934A (en) * | 1988-03-22 | 1992-01-14 | Lev Vinokurov | Evaporative cooler |
EP0337860A2 (en) * | 1988-04-08 | 1989-10-18 | Carboxyque Francaise | Isothermal container with refrigerant tank and application to fresh product transport |
FR2631610A1 (en) * | 1988-05-17 | 1989-11-24 | Pascual France Sa | Isothermal package for the transport of perishable foodstuffs and having detachable panels filled with a refrigerant agent |
US4910032A (en) * | 1988-11-16 | 1990-03-20 | Hercules Incorporated | Water-permeable controlled atmosphere packaging device from cellophane and microporous film |
US5088293A (en) * | 1990-08-30 | 1992-02-18 | The Japan Steel Works, Ltd. | Vacuum cooling method and apparatus |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5619841A (en) * | 1993-05-07 | 1997-04-15 | Weyerhaeuser Company | Field packing and cooling process for fresh produce |
US5421138A (en) * | 1993-05-07 | 1995-06-06 | Weyerhaeuser Company | Field packing and cooling process for fresh produce |
US20050233039A1 (en) * | 1995-07-11 | 2005-10-20 | Wolfe Steven K | Method for cleaning, packing, and transporting vegetables |
US20020164407A1 (en) * | 1995-07-11 | 2002-11-07 | Wolfe Steven K. | Method for cleaning, packing and transporting vegetables |
US6189299B1 (en) | 1998-03-10 | 2001-02-20 | Fresh Express, Inc | Apparatus for cooling and packaging bulk fresh products |
US6196237B1 (en) | 1998-09-01 | 2001-03-06 | Fresh Express Corp. | Methods for washing cores of cored lettuce heads |
US6276375B1 (en) | 1998-09-01 | 2001-08-21 | Fresh Express, Inc. | Apparatus and methods for washing cores of cored lettuce heads |
US6113958A (en) * | 1998-10-29 | 2000-09-05 | The Regents Of The University Of California | Method of preventing wound-induced browning in produce |
US6679276B1 (en) | 1999-04-20 | 2004-01-20 | Fresh Express, Inc. | Apparatus and methods for washing the cored areas of lettuce heads during harvest |
US6514349B1 (en) | 1999-09-14 | 2003-02-04 | Charles R. Meldrum | Produce washing system utilizing multiple energy sources |
US6537600B1 (en) | 1999-09-14 | 2003-03-25 | Charles R. Meldrum | Multiple-stage energy-efficient produce processing system |
US6467248B2 (en) | 2000-02-18 | 2002-10-22 | Fresh Express, Inc. | Method for processing freshly harvested leafy vegetables and subdivided, peeled fruit |
US6470795B1 (en) | 2000-02-18 | 2002-10-29 | Fresh Express, Inc. | Methods and apparatus for vacuum/gas flush treatment of fresh produce |
US6435347B1 (en) | 2000-02-18 | 2002-08-20 | Fresh Express, Incorporated | Container for freshly harvested respiring, leafy produce |
US6379731B1 (en) | 2000-02-18 | 2002-04-30 | Fresh Express, Inc. | Methods for vacuum gas flush treatment of fresh produce |
US20040058605A1 (en) * | 2002-09-19 | 2004-03-25 | Hansen Michael R. | Polysaccharide treated cellulose fibers |
US7484514B2 (en) | 2003-02-20 | 2009-02-03 | Dole Fresh Vegetables, Inc. | Washing a corded lettuce head |
US7278433B1 (en) | 2003-02-20 | 2007-10-09 | Dole Fresh Vegetables, Inc. | Washing a cored lettuce head |
US20080023041A1 (en) * | 2003-02-20 | 2008-01-31 | Dole Fresh Vegetables, Inc. | Washing a cored lettuce head |
US20050037118A1 (en) * | 2003-08-13 | 2005-02-17 | Unilever Bestfoods North America, Division Of Conopco, Inc. | Blanching vegetables |
US7678401B2 (en) * | 2003-08-13 | 2010-03-16 | Unilever Bestfoods, North America, Division Of Conopco, Inc. | Blanching vegetables |
EP1690806A1 (en) * | 2005-02-11 | 2006-08-16 | Keepfreeze S.A. | Cooling packaging |
US20080209932A1 (en) * | 2005-09-29 | 2008-09-04 | David Conrad Clarke | Cooling Device |
GB2445337B (en) * | 2005-09-29 | 2009-01-14 | David Conrad Clarke | Cooling device |
WO2007037707A3 (en) * | 2005-09-29 | 2009-04-30 | David Conrad Clarke | Cooling device |
WO2007037707A2 (en) * | 2005-09-29 | 2007-04-05 | David Conrad Clarke | Cooling device |
US20070214763A1 (en) * | 2006-03-14 | 2007-09-20 | Dole Fresh Vegetables, Inc. | Lettuce harvesting for cup-shaped portions of heads |
US7861415B2 (en) * | 2006-03-14 | 2011-01-04 | Dole Fresh Vegetables, Inc. | Lettuce harvesting for cup-shaped portions of heads |
US8074365B2 (en) | 2006-03-14 | 2011-12-13 | Dole Fresh Vegetables, Inc. | Lettuce harvesting for cup-shaped portions of heads |
US20110203222A1 (en) * | 2008-11-06 | 2011-08-25 | 4F4 Fresh Ab | Apparatus for Domestic Use to Preserve Food, by Changing the Atmosphere in a Food Package |
US10488095B2 (en) | 2016-05-18 | 2019-11-26 | Walmart Apollo, Llc | Evaporative cooling systems and methods of controlling product temperatures during delivery |
US10240846B2 (en) | 2016-07-27 | 2019-03-26 | Walmart Apollo, Llc | Systems and methods for delivering perishable items |
US10474982B2 (en) | 2016-10-04 | 2019-11-12 | Walmart Apollo, Llc | Systems and methods utilizing nanotechnology insulation materials in limiting temperature changes during product delivery |
US11511902B2 (en) * | 2020-02-03 | 2022-11-29 | Multivac Sepp Haggenmueller Se & Co. Kg | Deep-drawing packaging machine with vacuum cooling station and method for vacuum cooling hot-packaged products |
Also Published As
Publication number | Publication date |
---|---|
CA2072967C (en) | 2005-05-17 |
US5458899A (en) | 1995-10-17 |
CA2072967A1 (en) | 1992-03-06 |
WO1992004235A1 (en) | 1992-03-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5290580A (en) | Cooling process for perishable food and horticultural products | |
US5908649A (en) | Package for perishable food and horticultural products | |
US5747082A (en) | Package for perishable food and horticultural products | |
US5505950A (en) | Method of packaging perishable food or horticultural products | |
US2707352A (en) | Preservation of plants and plant parts | |
US5037459A (en) | Device for controlling relative humidity within a substantially sealed container | |
US5565230A (en) | Cherry preservation packaging method | |
US5919504A (en) | Fresh produce package | |
US6541054B2 (en) | Method for releasing sprout suppressant into quantities of potatoes | |
US3502485A (en) | Process and device for preserving plant products by means of bactericidal gas | |
US3320075A (en) | Method of packaging prechilled food products | |
GB2210806A (en) | Atmosphere control device | |
US5744205A (en) | Semi-sealed or sealed package for preserving produce composed of resin covered paper | |
US5421138A (en) | Field packing and cooling process for fresh produce | |
WO1997011009A1 (en) | Extended shelf-life package for fruits and vegetables and the like | |
US5591504A (en) | Disposable, biodegradable air freshening device and food preservative | |
US2890123A (en) | Apparatus and method of preserving foodstuffs and the like | |
WO2002012089A1 (en) | Gel for moisture control and device | |
RU2097292C1 (en) | Sack for potato and other tubers | |
WO1992004256A2 (en) | A package for perishable food and horticultural products | |
CN220363740U (en) | Agar culture medium flat package body capable of preventing condensed water | |
JPH02249448A (en) | Corrugated box for preserving freshness | |
JP2512308B2 (en) | How to save flower ginger | |
CN208813878U (en) | A kind of vegetables and fruits tin foil | |
AU636031B2 (en) | Condensation control in horticultural packaging |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: WEYERHAEUSER COMPANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:FLOYD, STAN L.;MUISE, HERBERT D.;STANISH, MARK A.;REEL/FRAME:006081/0245;SIGNING DATES FROM 19920327 TO 19920330 Owner name: WEYERHAEUSER COMPANY,WASHINGTON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FLOYD, STAN L.;MUISE, HERBERT D.;STANISH, MARK A.;SIGNING DATES FROM 19920327 TO 19920330;REEL/FRAME:006081/0245 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: INTERNATIONAL PAPER COMPANY, TENNESSEE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WEYERHAEUSER COMPANY;REEL/FRAME:021511/0116 Effective date: 20080801 |